Home / 1,129,887.42-1,559,275.10-664,773.76

Finding the Fourth Proportional to 1,129,887.42, 1,559,275.10 and 664,773.76

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Solution

The fourth proportional to 1,129,887.42, 1,559,275.10 and 664,773.76 is: 917,405.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,887.42 : 1,559,275.10 = 664,773.76 : x
  2. Step 2: Convert to fraction form
    1,129,887.42/1,559,275.10 = 664,773.76/x
  3. Step 3: Cross multiply
    1,129,887.42x = 1,559,275.10 × 664,773.76
  4. Step 4: Simplify right side
    1,129,887.42x = 1,036,565,171,101.38
  5. Step 5: Solve for x
    x = 1,036,565,171,101.38/1,129,887.42
  6. Step 6: Final answer
    x = 917,405.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.